Full-Scale Turning Characteristics of the U.S.S. Los Angeles (1930)
NASA Technical Reports Server (NTRS) · leaf 6
ecords were of use in determining whether or not the airship was reasonably level and steady during turns. An N. A. C. A. chronometric timer (Reference 4) was used to synchronize the above records at 16-second intervals. A camera obscura was used to record the path of the airship during turns.… … Figure 1.—Portion of a yaw-observer record chamber by a lens in the camera aperture. In these tests a wide-angle lens was used to project the airship's image on a 30 by 30 inch photographic film. The film was completely covered by a movable light-proof screen in which a small motor-driven shutter…
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
